Acetylene-lamp.



W'. H. GLARKSON.

AGBTYLENE LAMP.

APPLIUATION FILD SEPT. ao, 1912.

Patented Feb. 24, 1914.

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COLUMBIA PLANOGRAPH co., WASHINGTUN', nic,

UNITED STATES PATENT OFFICE.

WILLIAM HENERY CLARKSON, OF EDWARDS, ILLINOIS.

ACETYLENE-LAMP.

LSSAMO.

To all whom t may concern:

Be 1t known that I, WILLIAM H. CLARK- soN, citizen of the United States, residing;

at Edwards, in the county of Peoria and tate of Illinois, have invented certain new and useful Improvements in Acetylene- Lamps; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an acetylene lamp, particularly of a type for the Vuse of miners, to be carried on the head-gear or cap.

An object of the invention is to provide a lamp body having a single chamber for holding both water and a gas forming compound and to provide a dividing partition separating the compound from the water and movable in the direction of the water due to and by the expanding compound.

Another object is to construct a lamp of the character described made up of but 'few parts and which is, therefore, comparatively simple in construction and that can be easily charged and easily operated and that can be assembled and disassembled quickly.

The invention further relates to certain details of construction as will be pointed out in the followingspecification aided'by the accompanying drawing in which:

Figure l is a longitudinal section of my improved lamp mounted upon a head-gear or cap. Fig. 2 is a front elevation of the lamp. Fig. 3 is an end'elevation of a telcscoping member for holding carbid showing a portion of the wall of the body in connection therewith. Fig. Ll is a side elevation of the telescoping member shown with a gasket thereon, and Fig. 5 is a side elevation of a portion of the lamp body showinga circumferential flange portions of which have inclined surfaces.

A indicates a casing being a portion of the body and constructed preferably of sheet metal. It takes the form of a cup and its wall B has an extended portion C which in turn is sunken or depressed at I) to constitute a concave reflector centrally of which is an opening E and an outwardly extending flange F in which a burner G is placed and held in any desired manner. The rear edge of the casing A is provided with a circum-` ferential vflange H which is separatedpreferably into a series of portions hby means Specification of Letters Patent.

Application filed September 30, 1912.

Patented Feb. 24, 1914.

Serial No. 723,243.

of notches J, there being four of such portions in the present instance as shown in Fig. 2. The portions or zones 7i have inclined upper surfaces 7L', that is to say, the fiange of each zone beginning at one of the notches is gradually thickened toward the next notch so that the top surface forms an inclined plane which lies at an angle to the base of the flange. K represents the other portion of the body which is also in the form of a cup constituting a receptacle. At its edge it is provided with a flange L corresponding to the flange H except that in place of the notches J there extends from the periphery of the flange L a series of extensions M. These first extend perpendicu lar to the iiange and are provided with downwardly and inwardly extending portions N substantially parallel to said flange, said portions corresponding in position to the positions of the notches J of the flange H.

O is a rubber ring or gasket interposed between the flanges L H whereby a gas tight and water tight connection can be main- -tained between said flanges. Extending from the flange L at each of two opposite sides'is an arm P one of which, see Fig. 1, is secured in any good manner to the headgear or cap Q, the other being suitably attached to the peak of the same. The said body portion K may thus be permanently secured to said cap although, of course, it may be removably attached thereto if desired.

R is a cupped member which may be termed a receptacle. This slidably fits the interior of the body and is adapted to lie within the body portion A or within both it and the portion K.

S indicates a helical spring which lies within the member R and bears at its ends against the front wall of the body portion and the wall or bottom of the said member R and adapted to exert constant pressure against and tending to move the member into the body portion K. However, this said spring Sy may not be employed. The member R is adapted to contain the carbid or gas forming compound and as it preferably snugly fits the body I provide a groove R in its wall, see Figs. 3 and 4, along which the water may pass from the portion K between the gasket O and between the walls of said member R into the body A to the compound.

In practice the body portion K is filled or partially filled with water, then the member R upon which the gasket O is slipped is charged with the carbid, preferably contained in a cloth or other bag T of porous material for convenience in handling, said member being then inserted into the body portion A together with the spring S, if the latter is employed, then the two portions A K are brought into position, Vtheir flanges inclcsing the said gasket O, the portions N passing through the notches J. Then, by a rotation ofthe two said portions relatively the flange portions i are carried under said portions N, the wedge shaped parts causing the flanges to be forced against the gasket O withvgreat'pressure making an absolutely tight joint. The water'now runs along the groove R 'to the compartment :holding 'the carbid and the resulting gas 'issues through the burner G. The carbid in expanding as the gas is given off now gradually forces the member R into A'the 'Water compartment the water being thus forced through the Y groove R in a steady flow. The said member R practically constitutes a diaphragm forl separating the water from the. carbid and is movable by the expansion of the latter the lamp being thus :positive in action in an automatic manner. In addition to this the pressure of the spring may assist as is understood. Then first charged the carbid, of course, occupies a comparatively small space but as it expands greater space is required which is furnished in the gradual displacement of water.

The groove R though shown quite large in use isbut a mere scratch or only of sufficient extent to permit but a very small amount of water to pass toward the carbid compartment. That is to say,n0 more water is permitted to p'a'ss than just sufficient to cause the liberation of Lthevqu'antity of 'gas required top'roduce a proper'blaze, the dis-- charge orifice at the burner `being fully large enough to relieve excessive pressure within the said carbid compartment.

LBy my arrangement the entire lamp can be kept comparatively small and in fact considerably smaller than other types of 'lamps capable of operating no longer than mine and, in addition, the operation is automatic as explained and is capable of steadier serv ice and of a flame of uniform brilliancy throughout the wholetime it is burning.

do not wish to be confined tothe exact structure shown and described herein since various changes may be made that will lie within the meaning ofthe invention and its claims,` and y Having describedv said invention yl claim:

l. A generator for an acetylene lamp comprising a receptacle for containing water, a receptacle for holding a gas producing compound, one slidably fitting the other, a casing slidably fitting lone of vthe receptacles and provided with a discharge orifice',

means included in the structure to secure the casing and the outer of the two named receptacles together, and a gasket clamped between the two last named parts and lying upon and encircling the wall of the inner receptacle, there being a passage through which the receptacles communicate.

2. An acetylene generator comprising two receptacles one slidably fitting into the other, a casing slidably fitting the outside of one of the receptacles and provided with a discharge orifice, a gasket interposed between the said casing and the receptacle, and means to secure the casing and the other receptacle together upon said gasket, there being a passage through which the two said receptacles communicate.

3. In an acetylene generator, the combination of a cupped fasing and a receptacle adapted to be secured together, their cavities facing one another, said casing having a discharge orifice, means to clamp the parts together, a gasket interposed between said parts, and a cupped receptacle slidably fit.- ing within the casing and within the first said receptacle and the gasket, one of the walls of said cupped receptacle separating the cavity of the casing from that of the said first receptacle.

4. In an acetylene generator, the combination'of a pair of cupped members or receptacles one of them having a discharge orifice,

means to secure the receptacles together with` their cavities facing one another to create an inclosure, a third cupped receptacle dividing the inclosure into two compartments and having a circumferential wall, said wall slidably fitting the two described cupped members or receptacles, and a gasket secured between the said members and encircling the said wall of the said third cupped'receptacle.

5. In an acetylene generator, the combination of a pair of cupped members or receptacles one of them having a discharge orifice, means to secure them together with their cavities facing oneanother to create an inclosure, a third cupped receptacle dividing the inclosure into two compartments and having a circumferential wall, said wall slidably fitting the two described cupped members or receptacles, a gasket secured between the said members and encircling the said wall of t-he said third cupped receptacle, and an expansible member interposed between the latter and one of the first named receptacles.

6. In an acetylene generator, the combination of a pair of cupped members or receptacles, one of them having a discharge orifice, means t0 secure the receptacles together with their cavities facing one another to form an inclosure.y a third cupped receptacle dividing the inclosure into two compartments and having a circumferential wall, said wallslidably fitting the two described cupped members or receptacles, a gasket secured between the lirst said receptacles and encircling the said wall of the third cupped receptacle, and an expansible member interposed between the latter and the member having the orifice.

7 In an acetylene generator, the combina tion of a pair of cupped members or receptacles one of them having a discharge oriiice, and each having a circumferential flange both lying in parallel planes, the flanges including means to secure the receptacles together with their cavities facing one another, a third cupped receptacle slidably fitting the interior of the members and dividing the containing space in the members into two compartments, and a gasket interposedrbetween the flanges of the members, the receptacle also slidably fitting said gasket, there being communication fromone compartment to the other between the gasket and the wall of the said third receptacle. p

8. In an acetylene generator, the combination of a pair of cupped members or receptacles, one of them having a discharge orifice, and each having a circumferential flange the flanges lying in parallel planes and including means to secure the receptacles with their cavities facing one another, a third cupped receptacle slidably fitting the interior of the members and dividing the containing space in the members into tw'o compartments, a gasket interposed between t-he flanges of the members, the said third re ceptacle also slidably fitting said gasket, there being communication from one compartment to the other between the gasket and the wall of the said third receptacle, and a spring in control of the receptacle and adapted to move the same within the members.

In testimony whereof I affix my signature,

in presence of two witnesses.

, WILLIAM HENERY CLRKSON.

Witnesses:

L. `M. 4THURLOW, W. I. SLEMMoNs,

Copies of this patent mayrbe obtained for ve cents each, by addressing the Commissioner of Patenti, Washington, D. C. 

